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Finding the Fourth Proportional to 588,886.70, 883,330.05 and 389,432.30

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Solution

The fourth proportional to 588,886.70, 883,330.05 and 389,432.30 is: 584,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,886.70 : 883,330.05 = 389,432.30 : x
  2. Step 2: Convert to fraction form
    588,886.70/883,330.05 = 389,432.30/x
  3. Step 3: Cross multiply
    588,886.70x = 883,330.05 × 389,432.30
  4. Step 4: Simplify right side
    588,886.70x = 343,997,253,030.62
  5. Step 5: Solve for x
    x = 343,997,253,030.62/588,886.70
  6. Step 6: Final answer
    x = 584,148.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.